Trace use ____ messages to verify that the destination host is reachable, and if not, give possible reasons for the problem.
A) TFTP
B) HTTP
C) IP
D) ICMP

Question

Quizplus · Accepted Answer

ICMP (Internet Control Message Protocol) messages are specifically designed for network troubleshooting and diagnostic purposes. The "traceroute" command uses ICMP packets to trace the network path between the source and destination hosts and to determine any loss of packets or delays in the network. Therefore, Trace uses ICMP messages to verify the reachability of the destination host and diagnose network problems such as routing issues, firewall blocks, or network congestion. TFTP, HTTP, and IP are all network protocols that operate at different layers of the OSI model and do not have the capability to check network reachability or diagnose network problems.

Trace Use ____ Messages to Verify That the Destination Host